雅鲁藏布江河岸植物物种丰富度分布格局及其环境解释
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拉琼, 扎西次仁, 朱卫东, 许敏, 钟扬
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Plant species-richness and association with environmental factors in the riparian zone of the Yarlung Zangbo River of Tibet, China
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La Qiong,Zhaxi Ciren,Weidong Zhu,Min Xu,Yang Zhong
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| 表2 雅鲁藏布江河岸植物群落调查样方的DCA排序分析总结表 |
| Table 2 Ordination summary of DCA species for the riparian plots along the Yarlung Zangbo River |
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| 排序轴 Axes | 合计
Total | | 1 | 2 | 3 | 4 | | 特征值总和 Eigenvalues | 0.65 | 0.47 | 0.31 | 0.22 | | | 梯度长度 Length of gradient | 5.95 | 5.96 | 3.26 | 2.61 | | | 物种与环境相关关系 Species-environment correlation | 0.94 | 0.54 | 0.62 | 2.61 | | | 物种数据累计变异百分率 Cumulative percentage variance of species data | 8.00 | 13.70 | 17.60 | 20.30 | | | 物种与环境关系累计变异百分率 Cumulative percentage variance of species- environment relationship | 37.5 | 65.00 | 79.90 | 92.40 | | | 特征值总和 Sum of all eigenvalues | | | | | 8.13 | | 典范特征值总和 Sum of all canonical eigenvalues | | | | | 1.72 |
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